updated 03/17/2012 AT 10:35 AM ET
•originally published 03/17/2012 AT 11:15 AM ET
Last year, a trip to Cancun during spring break would mean nonstop partying for “Nicole – but times have changed.
“She’s having fun soaking up the sun with non-alcoholic drinks,” a source tells PEOPLE. “She’s not drinking alcohol; she’s getting a lot of rest.”